I second this, and would like to throw in another problem with "quick and dirty" guides:ErMaC wrote:If you know the theory of 3:2 pulldown, and you know what colorspaces are, and you know how AVI files work, it doesn't matter what the other tools you're using are called this month, you'll be able to figure out how to use them.
In many cases, there is no quick and dirty solution to what's going on. Inverse telecine is a great example.
With anime, sometimes you may get lucky and you'll get a 24fps progressive DVD. Maybe it'll be telecined but in a very regular pattern that DVD2AVI can remove right then and there. Maybe it'll be one of the unfortunate cases that requires the brute force of Telecide to repair. Maybe it'll be one of those cases where it's mixed 24fps telecined / 29.97fps interlaced, in which case you'll have to be careful about what you do. Maybe it's one of those really terrible cases that's extraordinarily difficult or impossible to inverse telecine, in which case you'd better start looking for a good adaptive deinterlacer. If you were to do that, you'd need to start tweaking parameters to deinterlace just what you need. Or, hey, maybe it's not even telecined at all. Maybe it's true interlaced material.
The trouble with quick and dirty guides -- as I hope is clear now -- is that they become less of a guide and more of a decision tree. Unfortunately, in video processing, that decision tree is HUGE. It's so big that it's much more beneficial to teach theory, provide examples, etc and leave it to the reader to figure out what is best.
I guess at this point I might as well just suggest that links to supplementary sources be included in the Guide for those who want fast access to further information. Here's a few I've found useful.
The AVISynth manual, which should be required reading:
http://www.avisynth.org/index.php?page=AviSynthManual
Lots of information pertinent to aspect ratio, as well as a few exercises on conversion:
http://www.uwasa.fi/~f76998/video/conversion/
Charles Poynton's Color FAQ and Gamma FAQ, which are very technical and have a much broader focus than just digital video, but are useful nonetheless:
http://www.poynton.com/notes/colour_and ... maFAQ.html
http://www.poynton.com/notes/colour_and ... orFAQ.html
There's a lot of neat stuff in Donald Graft's Technical Library, too, but a lot of it is beyond me.